15
4. Cut the 110 mm diameter hole (or use a 107 mm core drill) in the wall for the flue.
Notes: 1.
Ensure the hole is horizontal.
2. For internal fitting
of the flue, using the flue sealing collar supplied, cut a 130 mm dia. flue hole using a 127
mm core drill.
5. Drill the fixing holes (10 mm dia.) to accept the No.10 plugs supplied. Using the screws supplied, fit the mounting bracket
or wall jig if used. If applicable drill a 22 mm dia. hole for the pressure relief valve discharge pipe terminal supplied with
the jig.
IMPORTANT: If the wall jig is used, follow the instructions supplied with the Premier Pack to fit the jig,
mount the boiler and connect the pipework.
4.4 FIT THE BOILER - Refer to Figs. 12,13
Lift the boiler and locate it on the mounting bracket.
Note:
When handling or lifting always use safe techniques - keep your
back straight, bend your knees, don't twist - move your feet, avoid bending
forwards and sideways and keep the load as close to your body as possible.
Where possible transport the boiler using a sack truck or other suitable
trolley.
Always grip the boiler firmly, and before lifting feel where the weight is concentrated
to establish the centre of gravity, repositioning yourself as necessary.
4.5 CONNECT THE PIPEWORK - Fig. 14
1. Thoroughly flush out all the water pipework. Refer to Section 3.9.
2. The valves/fittings have been factory fitted, however, check that all the
connections underneath the boiler have been tightened, especially the
union bends.
Note:
If applicable the heating union bends supplied with the wall jig
have been designed to enable the heating pipes to be routed from above and/or below using the same fitting.
Note:
When soldering to the boiler union bends, ensure the bends are not connected to the valves, otherwise the
internal seals may be damaged.
3. Connect the system pipework to the boiler. One metre of copper pipe must be fitted to the boiler before connecting to
any plastic pipework.
Note:
Do not forget that the pressure relief valve discharge pipe must be routed clear of the boiler to a drain in such a
manner that it may be seen, but cannot cause injury to persons or property.
4. Connect the 22 mm condensate trap drain pipe to the condensate discharge pipe using the clip supplied.
Ensure that the condensate discharge pipe is as required in Section 3.10.
Pour at least 0.5 litre of water into the flue duct, as shown in Fig. 13, and check the condensate discharge pipe for soundness.
5. Ensure that all the valves are closed (spindle flats at right angles to valve) and do not turn on the water or gas supplies at
this stage.
Alpha CD12S/20S/28S - Installation
Fig. 13 - rear of boiler
Location for
wall mounting
bracket on
rear of boiler
Pour water into flue duct
Fig. 14a - Without wall jig
A
- Heating flow (22 mm)
B
- Gas inlet (22 mm)
C
- Heating return (22 mm)
D
- Pressure relief valve (15 mm)
23
Heating drain
point
Condensate
trap
Heating return
valve
Heating flow
valve
B
D
C
A
65
45
70
58
202
Condensate
discharge pipe
Note:
Disconnect the filling loop after
filling the central heating system.
Содержание CD12S
Страница 43: ...43 Alpha CD12S 20S 28S...
